Doffer-comb motion.



No. 822,550. PATENTED JUNE 5, 190 6. 0. L. OWEN.

DOFFER COMB MOTION.

APPLICATION FILED AUG. 19, 1906.

UNITED STATES PATENT OFFICE.

OSCAR L. OWEN, OF WHITIINSVILLE, MASSACHUSETTS, ASSIGNOR TO THE WVHITIN MACHINE WORKS, OF WHITINSVILLE, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

DOFFER-GOIVIB MOTION.

Specification of Letters Patent,

Patented. June 5, 1906.

T0 at whom it may concern.-

Be it known that I, OSCAR L. OWEN, a citizen of the United States, residing at Whitinsville, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Dolfer-Comb Motions, of which the following is a full, true, and concise specification.

This invention relates to simple and effective means for operating the dofier-combs of cotton-combing and other machines which work upon cotton and similar fibrous material and the invention consists in the combi nation, as hereinafter described, of a crankwheel and wrist-pin member which has a sliding crank connection with the doffercomb rock-shaft, whereby the doffer-combs may be appropriatedy oscillated and their operation nicely regulated and controlled.

In the accompanying drawings, forming a part hereof, Figure 1 is a front elevation of a doffer-comb and its rock-shaft operated according to this invention. Fig. 2 is an end elevation of the same with the doffer-cylinder shown in dotted lines, and Fig. 3 is an 'enlargpd central section through the wrist-pin stu The doffer-comb 1 is carried by a air of arms 2 on the usual doffer-comb roc r-shaft 3, which is suitably journaled in the frame of the machine, so that the said comb will be free to oscillate in close proximity to the surface of the rotating doffer-cylinder 4. The latter is shown as being of the ordinary wire tooth construction and serves as usual to collect pieces of fiber from some other element of the machine andpresent the same to the doffer-comb, by which they are then removed from the cylinder and deposited elsewhere. According to the present invention the means for operating the do'lfer-comb comprises a crank or gear wheel 5, which is either fast upon or geared with some convenient rotary shaft of the machine upon which the doffer comb is employed. As shown herein, the wheel 5 is in mesh with a inion 5 on the end of the rotary powershaft A of a well-known Heilmann comber and is removably held in a bracket 6, so that it may be su planted by other crank-wheels of different c iameter, if desired, for the purpose of varying the number of oscillations of the doffer-comb during one revolution of the doffer-cylinder. The pinion 5' is also removably secured to the power-shaft for the same purpose. A radial slot 7 is formed in the face or web of the Wheel 5, and a shouldered wrist-pin stud 8 is secured therein at a certain distance from the axis of the wheel, predetermined according to the length of throw desired for the doffer-comb. The stud 8 has a sliding crank connection with the. rock-shaft 3 by means of a wrist-pin member 9, pivotally carried on the reduced end of the stud 8 and provided below its point of pivotal support with a sleeve 10, which embraces and slides upon the end of a crank-arm 12, carried by the rock-shaft. The member 9 is retained upon the stud by p he end bolt 8, tapped into the end thereof, *ig. 3. i

As the gear-wheel 5 and its stud 8 revolve in the normal operation of the machine a proper oscillating movement is imparted to the doffer-comb through the wrist-pin member 9, which remains dependent from the stud and slides back and forth on the end of the crank-arm, the latter being always maintained beneath the stud. Adjustment or regulation of the action of the dofler-comb may be readily accomplished either by changing the size of the gears 5 and 5, as above de scribed, or by adjusting the position of the stud 8 in its slot, or both, and the construction described besides being simple and com pact is also positive in its operation and readily accessible for manipulation.

Having described my invention, what I claim, and desire to secure by United States Letters Patent, is

1. As a means for operating dolfer-combs, the combination of a doffer-comb rock-shaft, a crank-arm thereon, a crank-wheel, and a wrist-pin member on said Wheel having sliding connection with said crank-arm.

2. As a means for operating dolfer-combs, the combination of a doffer-comb rock-shaft, a rotary power-shaft, a gear-wheel removably mounted in driving engagement therewith, and a sliding crank connection between said wheel and rock-shaft adapted to oscillate the latter.

3. As a means for operating doifer-combs, the combination of a dofler-comb rock-shaft, a rotary power-shaft, a gear-wheel removably secured in mesh therewith and an adjustable Wrist-pin member carried by said Wheel and having sliding crank connection With said rock-shaft to oscillate the same.

4. The combination With a dofier-comb rock-shaft and its crank-arm, of a crank- Wheel and a sliding sleeve on said arm pivotally secured to the face of said crank-Wheel, whereby rotation of the latter oscillates said rock-shaft.

5. The combination With a doffer-comb rock-shaft and its crank-arm, of a crank- Wheel provided With a slot, a stud adj ustably secured in said;slot, and a Wrist-pin member pivotally carried by said stud and provided below the stud With a sliding sleeve embrac- 15 OSCAR L. OWEN.

Witnesses ELWIN H. RooNEY, JOSEPH B. ADAMS. 

